Integrated Engineering ECU Tune for B9/B9.5 Audi RS5 & RS4

$809.10 - $899.10
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WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit

IE's 2.9T ECU upgrade dramatically increases horsepower, torque, engine response, power delivery, and more to release the full performance potential from your 2018-2023 Audi RS5 or RS4! Multiple stages are available to match typical bolt-ons and offer various fuel options and features while maintaining stock comfort and reliability. Enjoy a hassle-free install in minutes through the vehicle's OBD-II port, and get ready for supercar power from your RS-class Audi!

Add Up To: +148HP Over Stock!

Add Up To: +175 Ft-Lbs Torque Over Stock!

Transform your Audi and flash at home in minutes.


IE calibrators have maximized stock turbos and extracted full power potential on Stage 1 tunes without needing downpipe upgrades. Stage 2 and 2 Plus tunes are calibrated for aftermarket downpipes but will produce the same power as Stage 1 and Stage 1 Plus ECU tunes.


Stage/Fuel Horsepower Torque
Stock 444 HP 443 Ft-Lbs
Stage 1 & 2 91 Octane 502 HP 565 Ft-Lbs
Stage 1 & 2 93 Octane 522 HP 575 Ft-Lbs
Stage 1 & 2 E85  542 HP 581 Ft-Lbs
Stage 1 & 2 Plus E85 604 HP 660 Ft-Lbs

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